Ladies help.

I’ve been with my SO for 6+ years. Been together since high school. We have lived together for 5 of those six years. Well June 2016 I got pregnant. (Not being careful) anyways at that time he started using meth “cause he was scared” and I just found out Jan 2018. That he was using. Well since then he has gotten off of it. But part of me still doesn’t want to be with him. Mind you before I got pregnant I almost cut things off. But stupid me thought a baby might help him be around me more. Cause he was always wrenching on something or helping out friends with their cars and what not. Well wrong he didn’t change a whole lot and baby was all my responsibility. Then I found out about the meth and it all made sense. But still being clean he isn’t around us much. Definitely more than he was before. Also since all of this I have been thinking about someone else. (My ex) and how great he was and everything about him. And I know he still thinks of me and cares about me. Just don’t know what to do and why I’m feeling like this.

Just ughhh.

Any advice or words of wisdom welcome.